Microsoft unveiled the retail pricing structure of its upcoming Windows 7 operating system, and its three important variants: Home Premium, Professional, and Ultimate, elaborating on the pricing on both the upgrade and full versions. Microsoft also announced that customers buying PCs pre-installed with existing versions of Windows from select sources (retailers or OEMs), will be able to upgrade to Windows 7 at "little or no cost". The company also announced that select retailers in certain markets will be able to offer for a limited period of time, a pre-order discount scheme that can reduce the price by as much as 50 percent.

Here are the prices (in USD):
Windows 7 Home Premium - $199.99 (full version), $119.99 (upgrade)
Windows 7 Professional - $299.99 (full version), $199.99 (upgrade)
Windows 7 Ultimate - $319.99 (full version), $219.99 (upgrade)
Microsoft also detailed the global availability of the OS, and in different languages. The English version will launch on October 22. PC OEM vendors will be able to start shipping PCs pre-installed with the OS on the same day. Apart from the English version, Windows 7 in Spanish, Japanese, German, French, Italian, Dutch, Russian, Polish, Brazilian Portuguese, Korean, Simplified Chinese, Traditional Chinese and Chinese (Hong Kong), will be available on the same day. Windows 7 in Turkish, Czech, Portuguese, Hungarian, Swedish, Danish, Norwegian, Finnish, Greek, Ukrainian, Romanian, Arabic, Lithuanian, Bulgarian, Estonian, Slovenian, Hebrew, Thai, Croatian, Serbian Latin, and Latvian, will be available on October 31.
Source: The Windows Blog

Too bad the early order promotional pricing doesn't apply to the Ultimate edition....only Home and Pro. Not that the Ultimate edition adds anything that most personal users would need....still would have been nice if they'd have given it as an option.